The AirTAC AirTAC SDA40X140B Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 140mm stroke, PT1/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA40X140B is a double-acting, single-rod compact cylinder engineered with a 40 mm bore and a 140 mm stroke. It generates 628.3 N of push force and 527.8 N of pull force at 0.5 MPa, making it suitable for medium-duty handling tasks. Because this stroke exceeds the 130 mm standard maximum for this bore size, the unit is provided as a non-standard, made-to-order configuration.
This model features a male M14x1.5 piston rod thread for secure mechanical coupling to your load. The riveted body design drastically reduces axial mounting depth compared to conventional round-body cylinders, saving valuable machine footprint. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers should be added for high-energy cycles. This specific SKU lacks a piston magnet and therefore cannot support magnetic sensing.
| Model | AirTAC SDA40X140B Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 140 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 120 mm |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×140 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Pushes medium-weight cartons off a main sorting line using the 628.3 N extend force, fitting neatly within tight transfer station frames.
Utilizes the male M14x1.5 rod end to securely attach an ejection plate, extracting molded plastic components during automated cycling.
Acts as a 140 mm travel physical stop barrier for incoming pallets on a packaging conveyor, relying on the hard-anodized bore for wear resistance.
When sizing this actuator, evaluate your force requirements carefully. Stepping down to the SDA32 yields 402.1 N of push at 0.5 MPa, while stepping up to the SDA50 provides 981.7 N. At 0.5 MPa, this 40 mm bore achieves a safe working load of roughly 377 N (about 60% of its rated output) and can vertically lift approximately 32 kg with a 2:1 safety margin. Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only slows the piston near stroke end and does not function as a locking brake. To hold a load securely without live pressure, you must integrate an external rod lock or a pilot-operated check valve. Confirm your ordering essentials: 40 mm bore, 140 mm non-standard stroke, PT1/8 port, no magnet, and the male M14x1.5 rod thread.
Quick checklist
This double-acting 40 mm bore cylinder delivers 628.3 N push and 527.8 N pull at 0.5 MPa, or 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum push force is 128 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa, has a proof pressure of 1.5 MPa, and supports a speed range of 30-500 mm/s.
No, this specific SKU does not include a piston magnet, so it cannot support AirTAC reed or electronic switches. You would need to specify the -S option code to add a magnet for sensing. Additionally, this unit uses a fixed NBR bumper to decelerate at stroke ends, which is not an adjustable air cushion.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.